SHORT GUIDE TO PIGMENT BASED INK PADS - Normally glycerin or resin based. Generally acid free and non toxic!
Pigment ink pads have the special quality of being slow drying which makes them ideal for use when embossing!
Pigment inks tend to be thicker bodied than dye based inks and dry opaque. Because the glycerin based dye is not absorbed, use less ink because they sit on the surface of the paper and are not absorbed.
Pigment inks are suitable for use on porous paper and cardstock and work especially well when it is matte or embossed. It will also work on some non-porous/glossy material but usually only if embossing and being heat set. Sometimes, you may even wish to heat seat on porous paper.
Most metallic, pearlescent and interference colours tend to be pigment based and are great for embossing, however, for colours use the clear embossing pad.
Pigment based ink is a bit more difficult to remove from your stamps than dye based and will require the use of a rubber stamp cleaner.
